Function dump_hex

src/debug.c:82–125

* \brief Do a hex dump of the unsigned char array. * * \param ptr Pointer to a character array. * \param size Number of chars to words to dump. * * Prints the hex dump to `stderr` via rig_debug(): * * ``` * 0000 4b 30 30 31 34 35 30 30 30 30 30 30 30 35 30 32 K001450000000502 * 0010 30 30 0d 0a 00.. * ``` */

 * ```
 */
void dump_hex(const unsigned char ptr[], size_t size)
{
    /* example
     * 0000  4b 30 30 31 34 35 30 30 30 30 30 30 30 35 30 32  K001450000000502
     * 0010  30 30 0d 0a                                      00..
     */
    char line[4 + 4 + 3 * DUMP_HEX_WIDTH + 4 + DUMP_HEX_WIDTH + 1];
    int i;

    if (!rig_need_debug(RIG_DEBUG_TRACE))
    {
        return;
    }

    line[sizeof(line) - 1] = '\0';

    for (i = 0; i < size; ++i)
    {
        unsigned char c;

        if (i % DUMP_HEX_WIDTH == 0)
        {
            /* new line */
            SNPRINTF(line + 0, sizeof(line), "%04x", i);
            memset(line + 4, ' ', sizeof(line) - 4 - 1);
        }

        c = ptr[i];

        /* hex print */
        sprintf(line + 8 + 3 * (i % DUMP_HEX_WIDTH), "%02x", c);
        line[8 + 3 * (i % DUMP_HEX_WIDTH) + 2] = ' '; /* no \0 */

        /* ascii print */
        line[8 + 3 * DUMP_HEX_WIDTH + 4 + (i % DUMP_HEX_WIDTH)] = (c >= ' '
                && c < 0x7f) ? c : '.';

        /* actually print the line */
        if (i + 1 == size || (i && i % DUMP_HEX_WIDTH == DUMP_HEX_WIDTH - 1))
        {
            rig_debug(RIG_DEBUG_TRACE, "%s\n", line);
        }
    }
}

/*! @} */